--- gifout.c.orig	1999-11-06 22:51:34.000000000 -0800
+++ gifout.c	2019-01-01 11:31:55.652767797 -0800
@@ -44,6 +44,7 @@
  */
 
 #include <stdio.h>
+#include <stdlib.h>
 #include "port.h"
 #include "gifint.h"
 #include "kljcpyrt.h"
